MJ
Margaret Johnston — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Margaret Johnston across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Mary — first a daughter (b.~1890), then head of a 3-person household.
Age 40
b. ~1890
Female
Daughter
Born: Scotland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Johnston |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1890 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Johnston | Daughter | — | 40 | ~1890 |
| Mary Johnston | Head | — | 69 | ~1861 |
| Mary Johnston | Daughter | — | 44 | ~1886 |
Census Appearances
1920
Cook, Illinois
Daughter, age 29
Cook, Illinois · implied b. ~1891 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1910 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Cook, Illinois
Daughter, age 40
Cook, Illinois · implied b. ~1890 — 3 household members
| Surname | Johnston |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
Daughter, age 48
Cook-County, Illinois · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Bank Clerk |
| Industry | Savings Bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1100 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Margaret Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Johnston (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Johnston
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Johnston
Daughter · 1930 · age 40 · b. ~1890 · Illinois
★ You are viewing this record
Sibling
Mary Johnston
Sibling · 1930 · age 44
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
40 people indexed on this census page (ia:1930:illinoiscensus00reel426:0309)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Pavelin | 33 | Head | Assembler | Austria |
| 2 | Josephine Pavelin | 28 | Wife | — | Austria |
| 3 | Lorraine H. Pavelin | 0 | Daughter | — | Illinois |
| 4 | Andrew Pavelin | 37 | Brother | Labor | Austria |
| 5 | Charles E. Grund | 44 | Head | Driver | Sweden |
| 6 | Hattie N. Grund | 44 | Wife | — | Illinois |
| 7 | Lucille E. Grund | 21 | Daughter | Stenographer | Illinois |
| 8 | Eileen B. Grund | 18 | Daughter | Stenographer | Illinois |
| 9 | Bertha Hanson | 75 | Mother-in-law | — | Sweden |
| 10 | Michael J. Morrissey | 41 | Head | Proprietor | Illinois |
| 11 | Agnes G. Morrissey | 31 | Wife | — | Illinois |
| 12 | Robert K. Morrissey | 8 | Son | — | Illinois |
| 13 | Howard E. Morrissey | 2 | Son | — | Illinois |
| 14 | Anna L. Werger | 69 | Mother-in-law | — | Germany |
| 15 | Frank M. Brammer | 50 | Head | Chief Clerk | Tennessee |
| 16 | Bertha E. Brammer | 39 | Wife | — | Illinois |
| 17 | Frank M. Brammer | 9 | Son | — | Illinois |
| 18 | Irene T. Brammer | 7 | Daughter | — | Illinois |
| 19 | Peter M. Wilson | 34 | Head | Private Secretary | Illinois |
| 20 | Verona G. Wilson | 34 | Wife | — | Illinois |
| 21 | Laverne D. Wilson | 11 | Daughter | — | Illinois |
| 22 | Maud K. Smith | 53 | Head | — | Ohio |
| 23 | Howard W. Smith | 29 | Son | Mechanical Engineer | Illinois |
| 24 | James H. Smith | 26 | Son | Teacher | Illinois |
| 25 | Mary K. Smith | 23 | Daughter | Teacher | Illinois |
| 26 | Ward M. Chase | 37 | Head | Window Trimmer | New York |
| 27 | Margaret Chase | 35 | Wife | — | Pennsylvania |
| 28 | Ward S. Chase | 14 | Son | — | Illinois |
| 29 | John P. Chase | 11 | Son | — | Illinois |
| 30 | William S. Chase | 7 | Son | — | Illinois |
| 31 | Mary Johnston | 69 | Head | — | Scotland |
| 32 | Mary H. Johnston | 44 | Daughter | Bookkeeper | Scotland |
| 33 | Margaret Johnston THIS PERSON | 40 | Daughter | — | Scotland |
| 34 | Harold K. White | 30 | Head | Production Manager | Illinois |
| 35 | Elizabeth J. White | 31 | Wife | — | Scotland |
| 36 | Joseph B. Meyer | 51 | Head | Merchant | Russia |
| 37 | Sarah Meyer | 40 | Wife | — | England |
| 38 | Albert J. Meyer | 20 | Son | — | Illinois |
| 39 | Edward S. Meyer | 11 | Son | — | Illinois |
| 40 | Rollins J. Meyer | 2 | Son | — | Illinois |
Related Census Records
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)